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30561412236325 = 521378923040069
BaseRepresentation
bin1101111001011101000100…
…00111101100010000100101
311000012122100100212022111221
412330232202013230100211
513001204233013030300
6144555415143500341
76302663166561415
oct674564207542045
9130178310768457
1030561412236325
119813027522673
12351700b1576b1
131408c0c78b3a9
1477927483c645
1537ee8c12031a
hex1bcba21ec425

30561412236325 has 12 divisors (see below), whose sum is σ = 38172765419460. Its totient is φ = 24270668984960.

The previous prime is 30561412236323. The next prime is 30561412236347. The reversal of 30561412236325 is 52363221416503.

It can be written as a sum of positive squares in 6 ways, for example, as 52680348484 + 30508731887841 = 229522^2 + 5523471^2 .

It is not a de Polignac number, because 30561412236325 - 21 = 30561412236323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30561412236323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4461516610 + ... + 4461523459.

It is an arithmetic number, because the mean of its divisors is an integer number (3181063784955).

Almost surely, 230561412236325 is an apocalyptic number.

It is an amenable number.

30561412236325 is a deficient number, since it is larger than the sum of its proper divisors (7611353183135).

30561412236325 is a wasteful number, since it uses less digits than its factorization.

30561412236325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8923040216 (or 8923040211 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 30561412236325 in words is "thirty trillion, five hundred sixty-one billion, four hundred twelve million, two hundred thirty-six thousand, three hundred twenty-five".

Divisors: 1 5 25 137 685 3425 8923040069 44615200345 223076001725 1222456489453 6112282447265 30561412236325